SM Pro Audio M-Patch 5.1: Passive Surround Monitor Controller - Manual (Page 11)

You can use both active and passive speakers with the MPatch 5.1, connecting
the MPatch 5.1’s outputs directly to active speakers or to power amplifiers
driving passive speakers. Passive and active speakers may be freely mixed.
Never connect the output of a power amp to an MPatch 5.1
input. This will damage the unit and void your warranty.
WARNING: